MBh, 1, 199, 11.2 savihāraṃ sukhaṃ jagmur nagaraṃ nāgasāhvayam /

Divyāv, 1, 457.0 upasaṃkramya bhagavantamidamavocat prajñapto bhadanta tathāgatasya śroṇasya koṭikarṇasya vihāras tenopasaṃkrāntaḥ yāvadvihāraṃ praviśya niṣaṇṇaḥ //